*{
    margin:0;
    padding:0;
}

p,i,em{
    font-style:normal;
}

li{
    list-style:none;
}
#move_box{
    width:1200px;
    height:980px;
    margin:0 auto;
}
/*一定要设置高度和溢出隐藏*/
.big_img{
    position:relative;
    width:900px;
    height:640px;
    margin:60px  auto 0;
    overflow: hidden;
}
/*大图堆叠在一起,一定要设置高度和溢出隐藏*/
.big_img li{
    width:900px;
    height:640px;
    position:absolute;
    top:0;
    left:0;
    z-index:0;
    overflow: hidden;
}
.prev{
    position: absolute;
    top:300px;
    left:10px;
    cursor:pointer;
    opacity: 1;
    z-index:3001;
    width:60px;
    height:60px;
    background:url(../img/pre.png)no-repeat #ccc;
}
.next{
    position:absolute;
    top:300px;
    right:10px;
    z-index:3001;
    opacity: 1;
    cursor:pointer;
    width:60px;
    height:60px;
    background:url(../img/next.png)no-repeat 0 -60px red;
}
/*小图块也要设置高度*/
.small_img{
    position:relative;
    width:900px;
    height:300px;
    margin:0 auto;
    overflow: hidden;
}
.small_img ul{
    height:300px;
    position:absolute;
    bottom:0;
    left:0;
}
.small_img li{
   width:900px;
   opacity:0.6;
   cursor:pointer;
}
.small_img img{
    width:33.3%;
    float:left;
}

